public class Test {

    public static void main(String[] args) {
        BinarySearchTree binarySearchTree = new BinarySearchTree();
        binarySearchTree.insert(40);
        binarySearchTree.insert(50);
        binarySearchTree.insert(70);
        binarySearchTree.insert(45);
        System.out.println("=======");
//        System.out.println(binarySearchTree.search(40));
    }
}
